diff --git a/pkgs/development/python-modules/bitarray/default.nix b/pkgs/development/python-modules/bitarray/default.nix
index c413303dd21d..a7f7f84b1d64 100644
--- a/pkgs/development/python-modules/bitarray/default.nix
+++ b/pkgs/development/python-modules/bitarray/default.nix
@@ -1,12 +1,12 @@
 { lib, buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
-  version = "0.8.3";
+  version = "1.0.1";
   pname = "bitarray";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0pl9p4j3dhlyffsqra6h28q7jph6v3hgppg786lkmnqdh45x6305";
+    sha256 = "3eb500f8b9cde19e14472fcbee0195dbf0fbac006f8406a03f0cfb495dff20a0";
   };
 
   # Delete once https://github.com/ilanschnell/bitarray/pull/55 is merged